96 st205 to 94 GT wiring, well seems easy enough Options

[cheeco]

So in between waiting for parts to come in, i decided to see what wiring would be necessary to make the swap work 100%. So far (to my extreme pleasure) it looks like 99% will be plug and play. It looks like the only parts i need to wire in are the intercooler pump and fuel resistor/relay, can anyone confirm I didnt miss
any obscure wiring? I plan to unloom and unpin the relay box/pump wires that go to connector EA1 from the clip and simply pin them in the the EA1 on my original harness, sound like a good idea?

Also i plan to wire in the cruise control, seems like all i need to do is run a wire from the CC ecu to the IDL pin on the ecu, everything else should be plug and play, has anyone done this?

[cheeco]

I think i got the circuit open relay wiring covered by adding in the relay box from the clip that goes right to connector EA1. the intercooler pump wiring also runs with that relay box and must be added since the IC pump and relay connect to the ECU through the engine room harness connector EA1.

As for the harness length, think it would be easier to lengthen the harness with cut and solder (quick solder connectors) for the whole length or cut a hole in the firewall by the ECU and only cut and solder extend the connector(IM1) to the a/c subharness. I have access to wire harness grommets from my job for plan B, but i want to have the most profesional looking job. i dont know how it would look to extend and rerun the harness from the left side of the firewall back over to the right.